Rislone Block Seal Head Gasket Fix product is the easiest solution to stop head gasket coolant leaks, seals cracked cylinder heads and stops block leaks
This formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks.
Heavy duty formula works on aluminum and cast iron heads & blocks, along with sealing all other engine cooling system leaks better than a traditional stop leak. This includes repairing head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs
No draining of the cooling system is required, use with ALL types of antifreeze including conventional green or blue (Silicate-Based) and extended life red/orange or yellow (OAT/HOAT) coolant
This product carries a 1 year exchange warranty redeemable at any Canadian Tire store.